S. Korea develops advanced GPS to reduce errors

S. Korea develops advanced GPS to reduce errors

Summary: The differential GPS system will enable digital multimedia broadcasting devices such as car navigation systems to receive and use information in times of distress, and also reduce the margin of error from regular GPS systems.


South Korea has developed a technology which will enable it to use an advanced GPS in digital multimedia broadcasting devices such as car navigation systems.

The country's Ministry of Oceans and Fisheries said on Tuesday the differential GPS (DGPS) will be made available to the public as early as next year, Yonhap News reported.

The new technology enables ordinary devices with a multimedia broadcasting system to receive and use information from the DGPS with only a change of the GPS chip to a multipurpose chip, the ministry said.

It also reduces the margin of error down to just 1 meter, compared to conventional GPS which has a margin of error of up to 37 metres.

This system can help determine the exact location of a person or ship in distress, or provide real-time locations of convicted sex criminals through a smartphone application.

"The start of the DGPS service for the public will significantly improve the accuracy of conventional location services that use the global navigation satellite system, such as personal navigation systems, which will also become a new growth engine for the related industry," Lim Hyeon-cheol, a ministry official, said in the report.

GPS developments by the South Korean government for greater security are not new. The country planned to beef up its surveillance system in April this year, against North korea's electronic jamming signals, which targeted its civilian facilities in the past.

Topics: Emerging Tech, Government Asia, Mobility, Korea

Ellyne Phneah

About Ellyne Phneah

Elly grew up on the adrenaline of crime fiction and it spurred her interest in cybercrime, privacy and the terror on the dark side of IT. At ZDNet Asia, she has made it her mission to warn readers of upcoming security threats, while also covering other tech issues.

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  • We turned off SA a while ago . . .

    We turned off SA a while ago (which limited accuracy to 100 or 50 meters). In addition, future satellites will not support SA anymore. Right now, the accuracy according to the Wikipedia's analysis is 15 meters with older equipment, 5 meters with more recent. GPS.gov says it can be as good as 3 meters.

    I haven't seen any sources quoting the 37 meters number. Maybe some really old electronics are that bad, but modern GPS is much better, even without any augmentation.